I followed your suggestions for 3 days and here are the results of my observations - this may be a bit long, sorry!
First of all I found out that the CPU is running @1030MHz - seems my son tried o/clocking it.
Day1: Switched on PC at 10.30 ambient temp 18C
CPU 27C, System 20C- after half an hour Ambient was 18C CPU 38C and System 25C
System booted and left running idle - system tray showed Volume,ICQ,Microangelo on Display, WingPager, Allaboard,& WinAmp which was running.
The PC crashed at about 2.00pm.
Rebooted played RedAlert2 got blue screen after about an hour.
At 3.30pm stopped playing and left idle - crashed after 2 hours.
At 5.15 rebooted temp was CPU 42 Case 26 after half hour in cmos cpu went down to 39.
Disabled power savings in windows, switched off monitor and left idle.
Held till 11.30pm when it was switched off.
Day2:Switched on at 7.30 am. Temp ambient 17. CPU 19, Case 18 - after half hour CPU 38, case 25
PC left idle as day1, power saving off, monitor off - crashed 12.00
Rebooted, temp CPU 38 Case 26, after half an hour, CPU 39 Case 26. Left idle. At 4.00pm played Red Alert2 until 7.30, when PC was left running idle. Held till midnight when it was swirched off.
Day3:Switched on at 7.00am temp ambient 17, CPU 20, Case 18. After half hour CPU 38, System 25.
Left running idle with power saving off, not nerworked, monitor off.
Crashed at 1.30pm
Rebooted and started playing Red Alert2 - got blue screen at about 8.00pm.
Connected to network and PC used for browsing/napster etc) until about 11pm
PC was left idle overnight - did NOT crash at all until 10.30am day3 when I purposely switched it off and on to check the temp. CPU 39, System 26.
Turned on power saving and left idle. Got blue screen playing Red Alert2. Rebooted and left idle - after 2 hours it hasn't crashed yet.
Well considering everything it's not as bad as I had thought! I don't really blame the sytem for the blue screens in Red Alert or should I? I still have to check long term if the power saving feature has any effect when it's on.
Well Larry I'm sorry this is very long but what do you think?..should I worry?! Want me to check something else? I'm open to your suggestions/recommendations.
Thanks for your help.