I've connected my Windows 7 Ultimate PC to my Panasonic TX-32LZD85 TV via a VGA cable. The connection usually works, but about a quarter of the time I can't get the PC display to show on the TV. I've noticed that when it displays it says SXGA 60Hz in the corner of the screen and when it doesn't it says XGA 60Hz in the corner. I've tried two different VGA cables and have had the same problem with both. I've tried restarting the TV and unplugging and reattaching the VGA cable but it doesn't seem to help. It requires a few hours or a PC restart to reset. Please could someone tell me how to get it working properly every time?