Intel acknowledged a bug could cause its SSD 320 solid-state drives to fail. Firmware upgrade is on its way to address the problem, company said. Intel said it will keep selling the drives as only a small number of drives were affected. Intel has had issues with SSDs crashing in the past, including in 2009. The drive, which is being used in both PCs and Apple Mac computers, comes with storage between 40GB to 600GB.Intel is also asking users to backup data regularly and to minimize the unplugging of SSDs.”]