Owners of Sprint's LG Marquee (a distant cousin of the LG Optimus Black) will be pleased to see the roll-out of a new software update for the device. The new version LS855ZVC fixes one glitch that's been particularly frustrating for some users -- a bug which sometimes resulted in the phone locking up during calls. In addition, Sprint says the update improves the Marquee's security, which may or may not be a good thing, depending on whether you're interested in rooting the device.
Head on over to "Settings > About Phone > System Updates > Update LG Software" and check for updates to see if yours is ready. As ever, these updates are doled out gradually over time, so don't be too alarmed if you don't see anything just yet.