[TM2] EDITOR CRASHES - editor shuts down system

[reigner]

CPU: AMD Phenom II 955 - 3.2GHz
GPU: ATi 6850 1GB
RAM: 4GB DDR3 1600MHz
OS: Win7 Ultimate x64, single user with full admin

i've been having an issue with the editor crashing and in turn shutting down my entire system. it remains powered, but becomes unresponsive with no image on screen (monitors give me a "no signal" message). it happens intermittently and generally within the first 10 - 20 minutes of use, but i was using it for close to an hour earlier by doing frequent saves so as not to lose good progress. something else that is certain to mess things up is if i try to place a block with a billboard/image on it.

i'm at a loss as to why this is happening. voltages are fine and temps aren't an issue according to CoreTemp and GPUZ. possible driver error or conflict? ram tests negative for errors (have had problems with another batch that i'm sending away on RMA this week) but it may require heavy memory use before an error occurs. i'm just not sure.

[jonthekiller]

Please post your ManiaPlanetLog and CrashLog in Documents/ManiaPlanet.

[reigner]

i assume the maniaplanet folder in the documents folder was the personal data folder, correct? i set that to a folder within the game's folder in case anything happened to my files. there is no crash log. the systems stops responding before the game has a chance to write anything. had to copy maniaplanet log to pastebin, as it was over the character limit.

[pocoyo]

this is exactly what happens to me as well, but in game as well after around 20 minutes of playing?

Ati 4850, is my card overheating? i made sure i didnt overclock and it still happened