Invalid photoshop CS5 serial number

Started Oct 24, 2010 | Discussions thread
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awatson67 Junior Member • Posts: 30
Invalid photoshop CS5 serial number

Recently bought a CS5 and after installation said serial number invalid. Tried install several times and same message. Didn't try and use program. Contacted adobe and they said serial number on CD cover not valid.

Bizarre thing then happened yesterday when i opened a tiff file which must have had an open with adobe preset from my old CS2 and all of a sudden CS5 springs into life with no 30 day trial version etc and all seems to work fine, even updated itself.

Just wondered if anyone could explain

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