CTMBHA.DLL Error on Bootup

Upgraded from XP Home to Vista Home Premium, everything working great except for a .dll error on bootup, which from the info I have gotten is the sound card. Wondering if anyone can offer any help to make that error go away. The sound is working fine I'd just like to not get that error on bootup. I did all needed updates before and after the upgrade, but just can't get this to go away. Any suggestions? Thanks in advance! Inspiron E1505, Intel Core Duoprocessor T2050 (2MB/1.60GHz/533MHz) 15.4 Inch TrueLife Wide-screenWXGA, for Inspiron 6400/E1505 1GB, DDR2, 533MHz 2 Dimm for Inspiron 6400/E1505 256MB ATI MOBILITY RADEON X1400 HyperMemory, for Inspiron 6400/E1505 80GB 5400RPM SATA Hard Drive for Inspiron 6400/E1505 Microsoft Windows Vista Home Premium Integrated 10/100 Network Cardand Modem, for Inspiron 8X DVD+/-RW Drive for Inspiron 6400/E1505 SoundBlaster Advanced Audio for XPS M1710 Intel PRO/Wireless 3945 802.11a/g Mini Card (54Mbps) for Inspiron 6400/E1505 Dell Wireless 355 Bluetooth Module (2.0 + EDR),for Inspiron 53 WHr 6-cell Lithium Ion Primary Battery, for Inspiron 6400/E1505 Intel Centrino Core Duo Processor