WowAce

What version of Grid2 and game type (classic or retail) are you using ?

Retail

The current maximum Frame width of 100 pixels is not big enough and changing the scale screws up my borders on everything. Could you increase the maximum allowed frame width or explain which file that would be in to change it?

You can setup any frame width, type the desired width in the edit box below the slider.

currently in TBC classic if you increase the scale beyond 100% the background increases at a greater rate. Even if you make the frame width wider it is still pretty small at 100%. I played around with it a lot and can not find a solution except increasing my entire UI to compensate which is not really a solution.

I think you did not understand my answer or my explanation was not clear, under the frame width slider there is a edit box which displays the frame width, you can click there and type manually any width (even higher than 100), for example 300 if you want, so really there is no limit to the maximum with.

The scale issue was fixed in version 2.0.12-bcc