Possible configuration problem w/ php??

So after I recently upgraded from php4 to php5 I noticed that email attachments > 88k get truncated at 88k within squirrelmail/roundcube, however those same email attachments work just fine if I hit the imap server in thunderbird etc... Has anyone else run across this before? I've seen other bugs on different sites, but I did not manage to find any answers to this puzzle. thanks -- Jamie Dahl "Thousands of tired, nerve-shaken, over-civilized people are beginning to find out that going to the mountains is going home; that wilderness is a necessity; and that mountain parks and reservations are useful not only as fountains of timber and irrigating rivers, but as fountains of life." --John Muir "We must remember the First Amendment which protects any shrill jackass no matter how self-seeking" -- F. G. Withington "The Mountains are calling so I must go" --John Muir