LATEST: Britney Spears' driving without a valid license case has been postponed by one month because the troubled star is currently incapable of giving a deposition. Spears' lawyer J. Michael Flanagan was granted an extension to work on the case in January (08) and was due back in Los Angeles Superior Court for a hearing on Wednesday (20Feb08). But Judge T.K. Herman has further pushed back the misdemeanour case after the defence argued Spears' conservatorship attorneys "do not think she is qualified or capable of entering into a binding agreement" at this time. Spears' father Jamie was recently appointed conservator of his daughter's estate - he has temporary control over the Toxic singer's legal and financial affairs until 10 March (08) following her hospitalisation earlier this month (Feb08) for her reported bipolar disorder. The conservatorship lawyers also claim the Toxic singer is not mentally capable of giving a deposition or signed declaration, so the hearing is now set for 20 March (08). The hearing relates to an incident in August (07), when Spears scraped a parked car in a private parking lot in California's San Fernando Valley while driving without a valid licence. The hit-and-run charge, which was caught on camera, was dismissed in court in October (07) after Spears offered a personal apology and $1,000 (GBP500) in compensation to the vehicle's owner, Kim Robard-Rifkin. But the troubled star is still facing a charge of driving without a valid California driving licence - because at the time of the incident, she was only in possession of a permit from her native Louisiana. Spears has since obtained her Californian driving licence.