New Client Resolution Bug with Video Card and TV

Alright, not sure if anybody else is having this issue (two issues but will keep this to the major one for the most part). Anyway, the new client resolution it defaults too appears to be incorrect for my TV that I am using (Toshiba fairly old). The only resolution I can see available in the client is 1024x576 when the TV is actually 1024x768. Looking to see if there is a workaround for this as two problems are occurring form this.

1. The base client is too large (width wise) to fit on my screen. Not too big a deal as I can just slide it over to the left screen (I run dual monitor) and run the main client thing from there, but I figure there should be some way to make this smaller.

2. When the game launches I get an unsupported video card error. The video card has this happen with games if the resolution a game uses is not supported. In other words, league is defaulting to a resolution that does not work for my set-up. Not necessarily a bug, but league works 100% fine in the old client, so I figure this change is likely unintended and is actually an issue.

Looking for a workaround or to see if anyone else has had this issue.