I just repaired my solo and Pro Slingboxes by replacing the bad capacitors. Both units would work for approximately five (5) minutes then the signal would freeze. Once I replaced the capacitors the units work perfectly no more freezing.
The electrical engineer who helped me told me why the problem existed. According to him, it seems that the Chinese stole the formula for making the capacitors from the Japanese. But, the Japanese had left one key element out of the formula, therefore causing the capacitors to overheat and fail. Again, according to him, it seems this is a well know situation, but it is being ignored by companies that used the capacitors in order to keep costs low.