1) Your absolutely sure that you didn't update your graphics card drivers?
2) How about a Windows Update?  Tuesday is a day when MS releases weekly updates for Windows. This usually happens automatically unless you change the settings. Maybe one of those updates has caused the problem with the gauges?
3) Might your Anti Virus software have deleted an important file from the CS_B707-300 folder (possibly in the panel folder)? Check your Anti Virus Chest/Vault to see if it did.