Have the same symptoms and more details
Hi Kovid,
I'm using Calibre 0.4.73 and I have exactly the same symptoms.
I have executed the same diagnostics commands as you previously gave, but I can give you more details.
I'm using Calibre both on my personal laptops and at my office workstations, with Windows XP.
On my personal laptops, I have the administrators permissions and Calibre just runs like a charm.
At work, I have more restricted privileges, and Calibre don't recognize my Sony PRS505.
However, Windows manage to mount my folders, I can access them. I noticed however a weird behaviour of Windows XP at work.
I'm using only one memory card (the memory stick pro one), and the other memory card plug is empty. but windows keeps on mapping it to a hard drive letter.
It might be a clue ?
So, when I executed the diagnostics commands, I clearly saw that 3 drives are recognized, but I have only 2 drives (the internal memory, and the memory stick pro card). Maybe Calibre tries to access the 3rd drive and gets stuck ?
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