My Proxies (Private Squid PRoxies) keep failing?!?

Hey there guys and gals, I was hoping that someone might be able to help me solve a problem that has been the bane of my life for the past few months. I am using 30 private proxies from squidproxies for GSA and they keep failing every 10-20 mins? The strange thing is that if i manually retest them against google (options->configure->test proxies) a large number *not all* pass and the projects resume? To get around this i have saved my proxies to a txt file and have set GSA to parse the file and retest every 10mins or so The above does work and my projects will start up again and run for a while but then number of active proxies will go down to 0 again and all projects stop until they are retested. As you can imagine this is limiting the productivity of GSA and i am not getting as many submissions as i would like because of the repetative "down-time" between testing proxies. I have tried refreshing my proxies via squid but even when they give me new proxies they still keep failing? For info and in case it helps here is some additional info about my setup: Threads = 200 HTML Timeout = 180sec time between search queries = 30sec I am also using CB for Captures. Any help anyone can give would be greatly appreciated (even willing to pay for someone to take a look at me setup and fix problem). Should i be using another proxy provider? Thanks in advance everyone!!

Anyone have any suggestions - getting desperate now shame to be paying for VPS/proxies etc when its not running properly - just cant figure out what is wrong

Have you configured your IP correctly at http://vip.squidproxies.com/config.php?

Update - went with buyproxies.org and not had any problems since (just in case anyone else has same issues)