help with ics (wont fetch email after certain date)

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http://androidforums.com – Hi people This is my first post and I'm new to android here go's I have been using k9 mail for about 2 month and all of a sudden it has stopped receiving mail and wont fetch mail after the 24-09-12 I can send fine I have tried uninstalling and re-installing and it will only call mail up to the 24-09-12. My server is pop3 and I use my pc as the main source using the recent: command on outlook so it collects mail even if I open it on my phone . Imap4 isn't an option because I leave my mail on my server for backup and theres in excess of 10, 000 mail on there. I have tried another stock app th (General)