Roll20 will load other games but not the one that I DM

Okay so I have been running a game for months on an old vista computer.. Yeah I know horrible system whatever...Well I upgraded to another OS (Win 7 pro) and have awesome graphic and ram power with the new system and yet when I try to load my old game it won't get past the loading screen. At the same time when I go to play in another game it loads just fine...Any ideas what this could be?

Lets run through the first three steps of our guide to Solving Technical Issues to see if that helps or gives us an idea on what is happening. Step 1: Make sure to use the right browser Please check if these issues persist when using both Chrome and Firefox. Step 2: Ensure that there are no extensions/addons interfering with Roll20 Please disable all add-ons/extensions and anti-virus programs. Step 3: Clear your cache If none of the above succeeds, please thoroughly work through Step 4 . (Don't forget the complete Console Log!) Thank you!