I'm running a Win7 32-bit system which is up to date, with up to date drivers for an ATI Radeon Mobility HD 5430, and have been having the same crash-on-launch problem as many other people. I've tried running as admin and in various compatibility modes, tired runnin it simultaneously with itunes and have downloaded the various visual basic files and openal, with no joy. I've also tried moving the data files to a plain directory straight off the c:\drive.
When I went looking for baldur.ini (as is suggested in the master fault thread), it was not in the [User]/Documents/Baldur's Gate - Enhanced Edition folder; that folder is entirely empty. A quick look at the event log shows that apparently I have a fault with atioglxx.dll, the full text in the log being
Faulting application name: Baldur.exe, version: 0.1.0.0, time stamp: 0x50b66b64
Faulting module name: atioglxx.dll, version: 184.108.40.20688, time stamp: 0x4c892629
Exception code: 0xc0000005
Fault offset: 0x002830f0
Faulting process id: 0x151c
Faulting application start time: 0x01cdcefdcd7718e0
Faulting application path: C:\bgee\Baldur.exe
Faulting module path: C:\Windows\system32\atioglxx.dll
Any further suggestions are welcome.