null dc works fine on pc monitor but not tv

[Jox43w]

null dc works fine on my pc monitor but when i switch to my tv (ukscart tv with soft15khz) it simply will not load i can click run iso then nothing happons iv tryed starting a game on my pc monitor and switching to my tv after and the game window just gose white? iv set the res to 600x480 or something like that and i have espxe run at this res and its fine on the telly any ideas?

[lanman31337]

Have you checked on the NullDC forums?  I use a TV with my emulator and it works fine.

[Jox43w]

nobody on the nulldc forum uses it with a scart tv from what i can gather from the no replys.

neway

its the same for all pc games too and when i select d3d in mame im guessing it could be a direct3d problem im running the latest version tho iv done the direct3d tests and they all work on the tv. 

plzzzzzzzzzzzzz anyone know what im doing wrong. the gpu is a matrox g200 when its conected to my pc monitor everything works fine when i connect my tv via scart and softh15hz it seems only directdraw games work.

ahhhh im playing on using this tv in my cab but i dont know why it wont run the games its not like mygpu wont run them because it runnss flawlessy on the pc moniot just not the tv