Ctrl+V, Ctrl+C, Ctrl+X disabled, but Shift+Del/Ins & Ctrl+F not?

As the title suggests, it was one day impossible to cut, copy and paste in Windows XP across apps using Ctrl+X, Ctrl+C, Ctrl+V and to use left-Ctrl+PgUp/PgDn to move around tabs in SeaMonkey. Shift+Del, Ctrl+Ins and Shift+Ins worked, so did Ctrl+F, Ctrl+Q and a few other keyboard shortcuts.

The keyboard was Logitech Internet Pro Keyboard (iTouch Pro or somesuch).

I did do my standard run through tech forums (even a keyboard driver change) and scans with software (Spybot Search & Destroy didn't find anything). MBAM found a few things, I deleted them (the scan log of this well below).

LATER it turned out that the non-standard www button on the keyboard was STUCK. I had it moved to normal position and then using the Ctrl+... keys worked like a charm, even after a restart. Trouble was that I failed to test if the Ctrl+ keys also worked after the MBAM scan and correction.

* Some text is in Estonian.

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Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Andmebaasi versioon: 4387

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

4.08.2010 10:19:46
mbam-log-2010-08-04 (10-19-46).txt

Kontrolli tüüp: Kiirkontroll
Kontrollitud objekte: 180205
Kulunud aeg: 9 minut(id), 31 sekund(id)

Nakatunud mälu objekte: 0
Nakatunud mälu mooduleid: 0
Nakatunud registrivõtmeid: 1
Nakatunud registri väärtusi: 1
Nakatunud registriandmeid: 0
Nakatunud kaustu: 2
Nakatunud faile: 0

Nakatunud mälu objekte:
(Pahavara ei tuvastatud)

Nakatunud mälu mooduleid:
(Pahavara ei tuvastatud)

Nakatunud registrivõtmeid:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{faad2038-c371-473d-86f1-5b11d39c3775} (Rogue.Multiple) -> Quarantined and deleted successfully.

Nakatunud registri väärtusi:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Network\uid (Malware.Trace) -> Quarantined and deleted successfully.

Nakatunud registriandmeid:
(Pahavara ei tuvastatud)

Nakatunud kaustu:
C:\Documents and Settings\All Users\Application Data\SalesMonitor (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\All Users\Application Data\SalesMonitor\Data (Rogue.Multiple) -> Quarantined and deleted successfully.

Nakatunud faile:
(Pahavara ei tuvastatud)