grid problems

As the title says, I was a cloud in Second Life for 24 hours and it sucked! I decided to update my viewer on Monday. Unbeknownst to me, some inventory maintenance was also taking place on the grid at the time, so my inventory vanished. I did a quick Google search for missing inventory and tried so many different things to get the inventory back. I deleted my cache. I did a fresh installation of my viewer(s). I visited a water region. On my computer, I replaced this random inventory cache file. Nothing worked! I came across this blog post about Inventory Management and Performance, which advised me to contact support as soon as possible.