hey guys,
i hope you can help me,
i got BF2 for xmas and i've installed it fine today, (even though a few weeks ago i installed the demo and it did the same thing)

but when i click on play BF2 (any icon or method) to load, i get a black screen
monitor clicks (a flash of the desktop screen) then it restarts my machine. i'm baffeled as to what i can do to fix this? has any one had the same issue?

heres what i've tried to do.
installed with no patch - same result
installed and patched - same result
change desktop resoultion - same result
over clockd my cpu - same result
formatted and reinstalled xp - same result.
uped my power supply voltage 5% - same result
the v/c core temp is 56C
changed hertz from 60 to 70 - same result.

i have on the odd occasion say every 10-15 attempts of launching the game it will work, i register my details, then i find a server and click join server - same result

i've turned off all virus scanners, anti spyware etc. - same result

heres a code from an error report i get sometimes
BCCode : 100000d1 BCP1 : E2B4B3A4 BCP2 : 00000002 BCP3 : 00000000
BCP4 : F7B98AD2 OSVer : 5_1_2600 SP : 2_0 Product : 256_1

heres my PC specs
AMD ATH 2500+
1G ram
XFX 6600GT 128MB AGP
8MB 80G WD HD (45G free)
i have the latest drivers for my card and motherboard..
480W antec tru power PSU ESI PRO S/C
any ideas guys i'm getting deperate
thanks in advance.
Stu