Iam having ubuntu desktop 10.4 installed on vostro 3500 and later installed windows 7 professional as a dual boot. first installed ubuntu desktop 10.4 and secondly installed windows 7 professional both were working fine but recently windows 7 pro is having some problems and i want this to be reinstalled I mean only windows 7 pro to be reinstalled without distrubing the ubuntu desktop, have taken all the databackup but if reinstalled with the windows7 pro or windowsxp pro MBR will be erased due to this I will be left only with the recenlty installed windows for the boot. Please help with how-to-docs (step by step) for reinstalling windows 7 or xp pro without distrubing the ubuntu desktop , I require both the operating systems to be in my box. Please help.
Thanks in advance.