Dear Freinds, Win and myself have just recovered from an unexpected most fearefull and persistent shutdown.

This happened while I had few windows open on Firefox 3.1 Beta 2 - OS Vista PC Medion MD8830. I was listening to an audio podcast Media...
Dear Freinds, Win and myself have just recovered from an unexpected most fearefull and persistent shutdown.

This happened while I had few windows open on Firefox 3.1 Beta 2 - OS Vista PC Medion MD8830. I was listening to an audio podcast Media Player after another audio had asked to download Windows Media Player Firefox Plugin that I did twice but was still not working (I have checked on the control panel this file is not on the liost : checked by name and date).
When I clicked to stop the audio, everything shut and this is the first time I have been able to use the PC. This happened yesterday morning since I tried several times to reboot the PC but first would not react at all then would start and get freeze or said their was a recovery etc... windows. The wind error message mentioned :
Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.0.6001.2.1.0.768.3
Locale ID: xxxx
Additional information about the problem:
BCCode: c5
BCP1: F0305EE4
BCP2: 00000002
BCP3: 00000000
BCP4: 82530882
OS Version: 6_0_6001
Service Pack: 1_0
Product: 768_1
Files that help describe the problem:
C:\Windows\Minidump\Mini010102-01.dmp
C:\Users\xxx\AppData\Local\Temp\WER-396102-0.sysdata.xml
C:\Users\xxxx\AppData\Local\Temp\WERACB2.tmp.versi on.txt
Could anyone advice me what to do ?
Should I expect incompatibility or virus/malware ?

Many Thanks for help.