Hi there.
I have also windows 7 but the way that tremo works is pretty strange.
First I had some old drivers and screen was jumping in game. After update there was no problem but I wanted to install korx mode. Didnt know how to install tremo properly because it did not want to instal base folder in system apps. Dunno

Now when i installed some Tremoulus GamePlay Preview (some tremo update from tremoulus dowdnload link) than I was able to play in really high resolution.
I turned off Tremou GPP and turned usuall tremo. Than in graphic configuration after resolution change the game hanged and showed error comunicate like the one in topic.
After 3 times of the same combination the game shows the same comunicate every time I start the game.
I have newest nvidia drivers for sure so there should be no problem like this

Got any idea how to help?
Thanks