I have MDK 9.1 on my laptop. I accidentally unchecked the box next to "update_source" in the configure sources box under the Software Sources Manager under Software Management in Mandrake Control Center. I try to recheck it and hit save, but it wont stick. So, I cannot get any updates, it keeps asking for a location but when I put it in, it says it cant get it. How can I recheck that box? Thanks.