internet explorer is crashing on ebay

hi

we have a brand new inspiron 1525 running Internet explorer and adobe flash 10 and macafee antivirus

explorer has crashed on a few occasions but always on ebay and usually closes down the computer

have found event logs relating to application errors:

Faulting application iexplore.exe, version 7.0.6001.18000, time stamp 0x47918f11, faulting module mshtml.dll, version 7.0.6001.18183, time stamp 0x4941fb55, exception code 0xc000001d, fault offset 0x000f0427, process id 0x12e0, application start time 0x01c97e395e618063.

Faulting application iexplore.exe, version 7.0.6001.18000, time stamp 0x47918f11, faulting module Flash10a.ocx, version 10.0.12.36, time stamp 0x48e83175, exception code 0xc0000005, fault offset 0x000888f8, process id 0xfc8, application start time 0x01c97e36109f5f33.

Faulting application iexplore.exe, version 7.0.6001.18000, time stamp 0x47918f11, faulting module ADVAPI32.dll, version 6.0.6001.18000, time stamp 0x4791a64b, exception code 0xc000001d, fault offset 0x0003f029, process id 0x1250, application start time 0x01c97e34d0837723.

it is driving us mad!

any ideas??