Hi, i've been looking for any information on this problem i have and have found nothing, my problem isn't the well known problem of the 1MB limit, it's true that i can upload small files, but even files with 800Kb fails some times. The problem is that i can't upload any file (of certain size, the smallest do upload) using megaupload and it's kind. I've seen that when uploading with dropbox (https://www.dropbox.com) i can upload any file of any size without problems if i use the "basic uploader". I've also seen that the file i want to upload is sent from my PC to the PC with squid running on it at LAN speed (8-10Mb/s) (with gkrellm and the upload bar of megaupload, dropbox and such), but when i use the "basic uploader" of dropbox the file is sent directly from my PC at WAN speed (~100Kb/s) When i stop squid this problem disappear. I'm running squid version 3.1.6 on Gentoo and have arno-iptables-firewall enabled. Any one can help me or say where to look? acces.log, cache.log and store.log are total gibberish. Thanks.