I am using Debian Sid and kernel 2.6.11

I have noticed that some of my HTTPS connections time out. For example, I've been unable to complete a paypal payment, but most CC transactions go through fine. I don't experience this with normal HTTP connections. but it is not so simple, I have several complicating factors. My firewall is generated by firehol (firehol.sf.net ), and I am on dialup. I pass all my connections through Squid and Privoxy. I also run an Apache + SSL server, and that works fine all the time. I have tried turning all these services off, and it still happens...any ideas are appreciated. Thanks in advance!