Previous sessions running very slow after upgrade

[Upere]

Yesterday I decided to upgrade from an Mbox 2 Mini to an Mbox 3. I was currently using PT 8.0.4, but decided that I should do a complete uninstall and then install the PT 8.0.4 that came with the Mbox 3, which I did.

Everything went smoothly and the new Mbox 3 is performing wonderfully. The problem is, when I try to play a session (recorded on the Mbox 2 Mini) it plays in slow motion. No errors, no dialog box, etc. it just plays in slow motion. I’ve tried adjusting the buffer settings, but no good.

Again, the only changes made were uninstall PT 8.0.4, re-install PT 8.0.4, and connect the Mbox 3. Any ideas how to correct this?

• iMac 21.5-inch 3.6GHz Intel Core i5 processor
• OS 10.6.7
• Mbox 3
• Pro Tools 8.0.4
• 4 g of RAM
• Axiom 49 pro connected via USB 2
• Glyph 1 TB Hard Drive connected via FW800

[Talisker]

Does the Transport window indicate the correct tempo ?

[Upere]

Transport shows right tempo. I've checked everything that I can think of.