Proteron today announced the release of LiteSwitch X 1.5.2, an update to its popular Mac OS X keyboard application switcher. Version 1.5.2 fixes a critical bug in the recently released 1.5.1 update. The bug prevented anyone from using the LiteSwitch X hot keys if they had selected Option-Tab or Control-Tab as the Hot Key Trigger. LiteSwitch 1.5.2 is priced at US$14.95.