BUMP

If you have Vista, open Windows Defender, Tools, Software Explorer and look for bttray.exe. You can also open Bluetooth devices in control panel, select options and uncheck the bt icon.

I just pulled my shiny new Studio 1737 out of the box and the first thing I see after windows vista setup is ...

BTTray.exe Application Error.  The application failed to initialize properly!

Yay! I tried to download the new bluetooth drivers and install them from support.dell.com and the new driver install hangs at 98%.

Unfortunately I need to use a bluetooth mouse or it would be a non-issue. 

[Insert plea for help here]

Thanks

IVB

I had the same BTTray problem on my new Dell deskop (Inspiron 530), right out of the box as well. I also had a similiar error on RMCPlg.exe and was unable to create a recovery disc. Turns out they were all related to the DataSafe local build. Can't say if the problem you're experiencing is related, but you might want to check out this Dell Knowledge Base Article #359580. The solution worked for me:

http://support.dell.com/support/topics/global.aspx/support/dsn/en/document?c=us&dl=false&l=en&s=gen&docid=6CF68D431EAAB41BE040AE0AB6E16686&doclang=en

If you can turn on Bluetooth but having problems pairing or using a Bluetooth accessory, try the following steps to try to fix common problems with Bluetooth accessories.

You should also check your Bluetooth device manufacturer's website—especially if you have other Bluetooth devices that are working. The device manufacturer will probably have more detailed, product-specific information and troubleshooting steps.

To get started, select a heading to see more info.

Keyboard, mouse, or pen
If you’re prompted to enter a PIN to use your device, but you don’t know the PIN:

Check the device’s documentation for a pin, or look for one on the device itself.

Try 0000 or 1234.

If you’re prompted to enter a PIN, but you don’t see a place to enter one on your PC’s screen, type 0000 on your Bluetooth keyboard and press Enter.

Try to remove the device, then pair it again. Your device might be paired, but not connected—Bluetooth keyboards, mice, and pens connect only when necessary.
To remove a Bluetooth device, select the Start button, then enter settings. Select Settings > Bluetooth & devices > Devices. In Devices, select More options (the three vertical dots) for the Bluetooth device that’s paired but not working, then select Remove device > Yes. After that, pair the device again. For more info on pairing devices, see Connect a Bluetooth device.

Audio
If you’re having problems connecting a Bluetooth audio device or hearing sound:

Make sure the audio device is within range of your PC.

Make sure the audio is playing through the Bluetooth device. Select Start, then enter settings. Select Settings > System > Sound. Select Choose where to play sound then select the Bluetooth device.

If your Bluetooth device displays as Paired in Settings > Bluetooth & devices > Devices, but you can’t hear audio, make sure it’s connected. In Devices, select More options (the three vertical dots) next to the device, and then select Connect.

Try to remove the Bluetooth device, then pair it again. To remove a device, select Start, then enter settings. Select Settings > Bluetooth & devices > Devices. In Devices, select More options (the three vertical dots) for the Bluetooth device that’s paired but not working, then select Remove device > Yes. After that, pair the device again. For more info on pairing devices, see Connect a Bluetooth device.

If your device is connected, but the audio quality is poor:

Make sure the audio is playing through the Bluetooth device. Select Start, then enter settings. Select Settings > System > Sound. In Choose where to play sound, select the Bluetooth audio device.

Pause other things that might be using Bluetooth, such as file-sharing over Bluetooth. For more info, see Fix sound problems in Windows.

Verify that stereo is selected for the Bluetooth device to ensure the best quality audio. To do this:

On the right side of the taskbar, click Volume, and then select Manage audio devices (>) to choose a playback device.

Select the Bluetooth device, and make sure the Stereo option is selected. (The lower-audio quality option is Hands-Free.)

If stereo is not available as an option, remove the device in Settings > Bluetooth & devices > Devices, and then add the device again. Then, check the Volume panel again to make sure that stereo is selected.

This may help you,

Rachel Gomez