A friend had the old "Boot Disk Failure, Insert System Disk and Press Enter..." problem, but rebooting and / or pressing Enter didn't work, so I suggested checking the IDE cable connections to his HDD amd Motherboard. He did this, and found that the connection to the HDD was not seated fully. Subsquently, everything was OK for about a week, but now the problem has resurfaced. He says, when he "wiggles the connector", the problem is resolved, but this now happens every time he starts his PC.
I can't see how the IDE connector could keep coming loose, so could this be just a bad cable, or could there be some other underlying problem? The HDD is a Western Digital, purchased a year ago from PC World. Do these have 3 year warranties, and would PC World honour this if it turns out the HDD is at fault, or would we have to contact the manufacturers?