  Results of a survey of Galactic star-forming regions in the lines of methanol
8_{-1}-7_0E at 229.8 GHz, 3_{-2}-4_{-1}E at 230.0 GHz, 0_0-1_{-1}E at 108.9
GHz, and a series of methanol lines J_1-J_0E near 165 GHz are presented. Two
masers, DR 21(OH) and DR 21West, and two maser candidates, L 379IRS3 and NGC
6334I(N), as well as 16 thermal sources are found at 229.8 GHz. This is the
first detection of methanol masers at a wavelength as short as 1 mm. At 108.9
GHz, masers were found towards G345.01+1.79 and probably, towards M 8E. Thermal
emission is found towards 28 objects. Only thermal emission was found at 165
and 230.0 GHz (20 and 7 sources, respectively). The masers at 229.8 GHz belong
to class I, whereas those at 108.9 GHz belong to class II, according to the
classification by Menten (1991). The masers in DR 21(OH) and DR 21West can be
roughly fitted by models with the gas kinetic temperature of the order of 50K.
The detection of the 108.9 GHz masers towards G345.01+1.79 and M 8E may
indicate on a specific geometry of these objects. The combination of the
existence of the class II J_0-J_{-1}E masers towards W 3(OH), G345.01+1.79, W
48, and Cep A and our non-detection of the 3_{-2}-4_{-1}E and J_1-J_0E lines is
an evidence that the class II masers in these objects are pumped by the
radiation of hot dust rather than by that of UC HII-regions.
