I've been running TRIM enabler with a single SSD (Samsung 830, 128 GB) for a few months with no issues. A few days ago I added another SSD (same brand, type and size) and was surprised that it didn't show up in that application. So I decided to turn TRIM enabler off, then on again, however I wasn't able to turn it on again! I got an error message saying something along the lines that I probably had an Apple SSD or something (which of course is incorrect). I figured it might have something to do with the second SSD, so using "Disk utility" I ejected the drive and tried again. No dice Next I shut down the Mac, disconnected the SATA cable from the 2nd SSD and powered up the Mac again. This time I was able to enable TRIM enabler, so since then I've reconnected the 2nd SSD but haven't touched the on/off function of TRIM enabler. So what's the deal? Why won't TRIM enabler support both SSDs? The first SSD is my boot drive and connected to the lower optical drive connector. The second SSD is used as a Photoshop/Lightroom scratch and cache disk and is connected to a SATA-II PCIe card. I'm running OSX 10.6.8. Snow Leopard.