Application Error when running 99L

When running the 99L on my machine at work I get the following Application Error:
'The instruction at "0x0040c923" refereced memory at "0x00000000". The memory could not be "read"'.

I've tried using the reg. clearner, turning of sound in 99K before upgrading, and manual change to 16 bit color but nothing helps.
The system is running Win2000 (English), Matrox G400 (driver ver. 5.32.010 WHQL) and no soundcard.
The F,G,H,J,K versions have always run without any troubles at all.

At home 99L runs very well on Win2000 SP2 (Danish), GForce II GTS and SB Live! Value.

Best Regards
JensenJI