By Martin Baccardax Nvidia had solid results across the board, with a robust near-term sales outlook, but sliding demand for its cryptocurrency mining chips would weigh on shares Thursday. Nvidia (NVDA) – Get NVIDIA Corporation Report shares moved lower in pre-market trading after the chipmaker posted stronger-than-expected fourth quarter earnings but issued a muted-near term outlook for profit margins. Nvidia said current quarter revenues would rise to around $8.1 billion, plus or minus 2%, following on from a January-quarter tally of $7.64 billion, thanks to what CEO Jensen Huang called “exc…